The next xbox isnt expected until 2013 at the earliest. Halo 4 is expected for 2012. The current 360 has sold 55 million units. The new xbox will be a brand new launch.
If MS delayed Halo 4, they may be selling more systems of the new xbox but they would be wasting their 2012 xmas window, the 55 million 360 owners and not only the millions they would of spent already on Halo 4 but also the extra money in that extra year of development.
For MS it would make more sense to take advantage of the 360's out there and make promises of a sequel (Halo 5) on the next xbox, giving this new console atleast a year or two to increase in units sold.
Launch releases are when you try a new lower budget release. (Luigi's Manison, Resistance, Perfect Dark)
This is why NO is more likely. Unless of course MS wants to go all out against the WiiU (and overshadow the PS3) with the nextbox.
If it isn't bungie that develops halo 4 it might not be as good as the rest of the sequel. I mean, to my experience every time a new game episode changes developer it's either just good, or really really bad :/
Yeah usually the new dev is just given a contract to make a new game. The saving factor here is that 343 has been built from the ground up to be the halo dev, with people who love and live halo. So they have more of a chance than most
i mean i got reach it was great for ages but then my friends started to play FIFA and CoD and Gears of war if they make a new Xbox it has to be addictive and work well with Halo because i enjoyed reach. btw if u quit too many games on reach you get put back to recruit i think this is a bad idea